Homework Answers
The best example for a reaction in which glucose is completely oxidized to water and carbon dioxide is aerobic respiration
c6H12O6 + 6O2 ------> 6CO2 + 6H2O + ATP
The best example for nitrate to nitrogen reduction is denitrification :
NO3- ---Nitrate reductase---> NO2--------nitrite reductase-----> NO------> N2O-------> N2
B) The Gibbs free energy change for aerobic respiration is -2872.11 Kj/mol and the cell potential is same as the redox potential.
The gibbs free energy change for Nitrate to nitrogen reducation is 1120 KJ/ mol and the cell potential cannot be determined
c) All denitrifiers can perform the above reactions.
D) Thiobacillus denitrificans, Micrococcus denitrificans and achromobacter are few examples of such bacterium.
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A. Write the chemical reaction in which glucose is completely oxidized to CO2 and H2O, and nitrate is completely reduce...
If there is formation of NO(g) from N. (g) and 0,(g) at 298 K, calculate the...
If there is formation of NO(g) from N. (g) and 0,(g) at 298 K, calculate the standard free energy. The reaction is as follow: N,(g) + O2(g) → 2 NO(g) given that AH° = 180.7 kJ and ASⓇ = 24.7 J/K. Is the reaction spontaneous under these circumstances? A. Write the chemical reaction in which glucose is completely oxidized to CO, and H,O, and nitrate is completely reduced to N, B. What is the Gibbs free energy change and cell...
Two bacteria use glucose as carbon source and oxidize it all the way to CO2. Bacterium...
Two bacteria use glucose as carbon source and oxidize it all the
way to CO2. Bacterium A uses O2 as terminal electron acceptor,
Bacterium B uses nitrate. Which bacterium gains more energy? Why?
If the bacterium B could choose between O2 and nitrate as terminal
electron acceptor, which compound would it choose and why?
Two bacteria use glucose as carbon source and oxidize it all the way to CO2. Bacterium Auses O2 as terminal electron acceptor, Bacterium Buses nitrate. 1....
1. During the aerobic metabolism of glucose, glucose is a. Reduced to form water b. Oxidized...
1. During the aerobic metabolism of glucose, glucose is a. Reduced to form water b. Oxidized to form water c. Reduced to form CO2 d. Oxidized to form CO2 2. Which of the following describes the equation: FAD + XH à FADH2 + X. a. FAD is reduced to FADH2 b. It is a coupled reduction - oxidation reaction c. XH, is oxidized to X d. All of the above 3. Which of the following is FALSE about glycolysis? a....
Problem 5: Write the redox reaction for the following chemicals and label the electron donor, electron...
Problem 5: Write the redox reaction for the following chemicals and label the electron donor, electron acceptor, oxidation reaction, reduction reaction, oxidant and reductant, oxidized compound and reduced compound: (12 points) a. O2/H2O and SO42-/HS- b. NO3-/N2 and CO2/CH4 c. SO42-/HS- and CO2/CH4
Consider the metabolism of ethanol (CHaCH20H) by microorganisms. Ethanol is being oxidized to CO2...
Please Helpe me out with this!
1. first balance everything that is not 0 or H
2. balance O with H2o
3. balance H
4. balance charge with electrons
Do the proces for each one! separate! ethanol a,
ethanol b, ethanol c....
Consider the metabolism of ethanol (CHaCH20H) by microorganisms. Ethanol is being oxidized to CO2. The three available electron acceptors are: (a) Nitrate (NO3) reduced to N2 (b) Oxygen (02) reduced to H20 (c) Sulfur (S) reduced to H2S...
* GWhe + Question 4 When glucose and oxygen become carbon dioxide plus water (cell resp...
* GWhe + Question 4 When glucose and oxygen become carbon dioxide plus water (cell resp reaction) which of the following is true: The reaction is.. positive delta G and glucose is oxidized negative delta G and glucose is oxidized positive delta Gandslucose is reduced negative delta Gandducose is reduced Question 5 If an enzyme facilitates an endergonic reaction, which of these is the mo probable to be true? GW obec + If an enzyme facilitates an endergonic reaction, which...
following . reaction is being reduced respiration glucose is to provide energy for can be visualize...
following . reaction is being reduced respiration glucose is to provide energy for can be visualize The During cellulair Oxidized I reduced the cell. This process - in the general equation. CottO6t 602 6CO2 + 6H2O. The first stage of cel respiration is called glycolysis. It takes place in the cytosol of the cell. That is why all tett organish coin they perform this stage , even 4 Following do not have mitochondric! this first molecules stage, two three-carbon called...
C6H12O6 + O2 > CO2 + H2O + energy (673 kcal/mol) (1) 1. Add coefficient to...
C6H12O6 + O2 > CO2 + H2O + energy (673 kcal/mol) (1)
1. Add coefficient to balance reaction (1) in model 1.
2. Does reaction (1) release or absorb energy? Is the reaction
exothermic or exothermic?
3. Reason (1) is a redox reaction. Work with your team to identify
the atom that is reduced and the atom that is oxidized in the
reaction. (Recall that when in a molecular compound, oxygen has an
oxidation number of -2 and hydrogen had...
I need this answered and explained! Redox couple Eo (V) CO2/glucose (-0.43) 24 e 2H /H2...
I need this answered and explained!
Redox couple Eo (V) CO2/glucose (-0.43) 24 e 2H /H2 (-0.42) 2e CO2/methanol(-0.38) 6 e NAD /NADH (-0.32) 2 e -0.50 --0.40 -0.30 CO2/acetate (-0.28) 8 e E-0.20 S /H2S (-0.28)2 e SO22 /H2S(-0.22) 8 e Pyruvate/lactate (-0.19) 2 e SO62-S2032(+0.024) 2 e -0.10 0.0 Fumarate/succinate (+0.03) 2 e +0.10 Cytochrome boxred (+0.035) 1 e +0.20 Fe3 /Fe2 (+0.2) 1 e, (pH 7) Ubiquinone ox/red (+0.11) 2 e Cytochrome Cox/red (+0.25) 1 e Cytochrome...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form water Reduced to form CO2 Oxidized to form CO2 Which of the following describes the equation: FAD + XH2 à FADH2 + X. FAD is reduced to FADH2 It is a coupled reduction – oxidation reaction XH2 is oxidized to X All of the above Which of the following is FALSE about glycolysis? The initial steps of glycolysis requires energy derived from the splitting...
If there is formation of NO(g) from N. (g) and 0,(g) at 298 K, calculate the standard free energy. The reaction is as follow: N,(g) + O2(g) → 2 NO(g) given that AH° = 180.7 kJ and ASⓇ = 24.7 J/K. Is the reaction spontaneous under these circumstances? A. Write the chemical reaction in which glucose is completely oxidized to CO, and H,O, and nitrate is completely reduced to N, B. What is the Gibbs free energy change and cell...
Two bacteria use glucose as carbon source and oxidize it all the
way to CO2. Bacterium A uses O2 as terminal electron acceptor,
Bacterium B uses nitrate. Which bacterium gains more energy? Why?
If the bacterium B could choose between O2 and nitrate as terminal
electron acceptor, which compound would it choose and why?
Two bacteria use glucose as carbon source and oxidize it all the way to CO2. Bacterium Auses O2 as terminal electron acceptor, Bacterium Buses nitrate. 1....
1. During the aerobic metabolism of glucose, glucose is a. Reduced to form water b. Oxidized to form water c. Reduced to form CO2 d. Oxidized to form CO2 2. Which of the following describes the equation: FAD + XH à FADH2 + X. a. FAD is reduced to FADH2 b. It is a coupled reduction - oxidation reaction c. XH, is oxidized to X d. All of the above 3. Which of the following is FALSE about glycolysis? a....
Please Helpe me out with this!
1. first balance everything that is not 0 or H
2. balance O with H2o
3. balance H
4. balance charge with electrons
Do the proces for each one! separate! ethanol a,
ethanol b, ethanol c....
Consider the metabolism of ethanol (CHaCH20H) by microorganisms. Ethanol is being oxidized to CO2. The three available electron acceptors are: (a) Nitrate (NO3) reduced to N2 (b) Oxygen (02) reduced to H20 (c) Sulfur (S) reduced to H2S...
* GWhe + Question 4 When glucose and oxygen become carbon dioxide plus water (cell resp reaction) which of the following is true: The reaction is.. positive delta G and glucose is oxidized negative delta G and glucose is oxidized positive delta Gandslucose is reduced negative delta Gandducose is reduced Question 5 If an enzyme facilitates an endergonic reaction, which of these is the mo probable to be true? GW obec + If an enzyme facilitates an endergonic reaction, which...
following . reaction is being reduced respiration glucose is to provide energy for can be visualize The During cellulair Oxidized I reduced the cell. This process - in the general equation. CottO6t 602 6CO2 + 6H2O. The first stage of cel respiration is called glycolysis. It takes place in the cytosol of the cell. That is why all tett organish coin they perform this stage , even 4 Following do not have mitochondric! this first molecules stage, two three-carbon called...
C6H12O6 + O2 > CO2 + H2O + energy (673 kcal/mol) (1)
1. Add coefficient to balance reaction (1) in model 1.
2. Does reaction (1) release or absorb energy? Is the reaction
exothermic or exothermic?
3. Reason (1) is a redox reaction. Work with your team to identify
the atom that is reduced and the atom that is oxidized in the
reaction. (Recall that when in a molecular compound, oxygen has an
oxidation number of -2 and hydrogen had...
I need this answered and explained!
Redox couple Eo (V) CO2/glucose (-0.43) 24 e 2H /H2 (-0.42) 2e CO2/methanol(-0.38) 6 e NAD /NADH (-0.32) 2 e -0.50 --0.40 -0.30 CO2/acetate (-0.28) 8 e E-0.20 S /H2S (-0.28)2 e SO22 /H2S(-0.22) 8 e Pyruvate/lactate (-0.19) 2 e SO62-S2032(+0.024) 2 e -0.10 0.0 Fumarate/succinate (+0.03) 2 e +0.10 Cytochrome boxred (+0.035) 1 e +0.20 Fe3 /Fe2 (+0.2) 1 e, (pH 7) Ubiquinone ox/red (+0.11) 2 e Cytochrome Cox/red (+0.25) 1 e Cytochrome...
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